Improvement in electric-telegraph apparatus



w. THOMSON.

22 Sheets-Sheet 1.

Electric-Telegraph Apparatus.

Patented Nov. 17,1874.

THE GRAPH IC CO PH 070 LIYHJS l 41 PARK PLACEJtY,

IZZ/V/ZIIJVTOR i & M

22 Sheets--Sheet 2. w. THDMSUN.

Electric-Telegraph Apparatus. N0.156,897. Patented Nov.17,1874.

my. 2 (flaw ,7

WZZI/VESSES -13 M I l 3 YR! GRAPHIC CO. PHOTD-LITPLBQIMJ PARK PLACEJLY.

' 22 Sheets--Sheet4.

" W. THOMSON;

Electric-Telegraph Apparatus. N0.156,897. Patented Nov. 17,1874.

' W1 m" 155m M .luvr'Emro/a THE GRAPHIC CO. =HTO-L\TH.398: 4-K PARK PLACEJLY.

22 Sheets--Sheet 5.

w. THOMSON.

Electric-Telegraph Apparatus. N0.156,897. Patented Nov. 17,1874.

13- 7 KIZZ6 6 f y 22 She ets--Sheet 7. W. THOMSON.

Electric-Telegraph Apparatus. N0 l56,897, Pateqted Nov. 17, 1874.

22 Sheets--Sheet 9.

Patented N0v.17,1874.

22 ShBBtS--Sh88i10. W. THOMSON.

v Eiec tric-Telegraph Apparatus. No.156,897. PatentedN0v.17,1874.

I /Z\ l Q Altar/12y 22Sheets--Sheet11'.

W. THOMSON. Electric-Telegraph Apparatus.

Patented Nov. 17, 1874.

Jag- Z2- (V /Z6662) 22Sheets--Sheet12. W. THOMSON I Ele c-tric-Telegraph Apparatus. N0.l56,897, Patented Nov.17,1874.

THE 6 MPHIC c0 PHOTO -LITH,39 & IIIPARK PLACEJLY.

22 Sheets--Sheet14.

Patented Nov. 17,1874;

.ltlorney 4 22 Sheets-Sheet 15. W. THOMSON.

W QM Atria/"nay THE GRAPHIC C0.PHOTOL|TH-39&4 I PARK PLACE, NJ.

z 22 Sheets--Shet16.

W. THOMSON. Electric-Telegraph Apparatus.

NQ ]56,897, Patented Nov. 17,1874.

@ 9 m Atturney a 22 Sheets--Sheet 17.

W. THOMSON.

Electric Telegraph Apparatus. N0.156,897. Patented Now 17,1874.

HIHHIIHIIHIIIIIIHIII"Ill!"ll lllllll HE GRAPH? CO. rumurmau 4! PARK PLACE,

22 Sheets--Sheet19. W. THOMSON.

Electric-Telegraph Apparatus. N0,156,897. Patented N.ov17,1874.

fbyf/ J2; 7 r/ a J) 22 Sheets--Sheet 20. W. T H0 M S U N Electric-Telegraph Apparatus. N0.l56,897. Patented Nov.17,1874. 

